<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2016-06-10</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001397047</issuerCik>
        <issuerName>FlexShopper, Inc.</issuerName>
        <issuerTradingSymbol>FPAY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001163368</rptOwnerCik>
            <rptOwnerName>PACIFIC INVESTMENT MANAGEMENT CO LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>650 NEWPORT CENTER DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEWPORT BEACH</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92660</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001677498</rptOwnerCik>
            <rptOwnerName>B2 FIE V LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>650 NEWPORT CENTER DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEWPORT BEACH</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92660</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001572531</rptOwnerCik>
            <rptOwnerName>PIMCO BRAVO FUND II, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/0 PIMCO 650 NEWPORT CENTER DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEWPORT BEACH</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92660</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series 2 Convertible Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.81</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2016-07-26</value>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>24691359</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Indirect pecuniary interest</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">B2 FIE V LLC, a Delaware limited liability company (&quot;B2 FIE&quot;) was formed solely for the purpose of investing in FlexShopper, Inc (the &quot;Issuer&quot;).  B2 FIE purchased the Series 2 ConvertiblePreferred Stock (the &quot;Preferred Stock&quot;) from the Issuer.  PIMCO BRAVO Fund II, L.P. (&quot;Bravo II&quot;), a Delaware limited partnership is the sole member of B2 FIE and operates as a pooled investment fund and invests (among other things) in operating companies.  PIMCO GP XII, LLC (&quot;PIMCO GP&quot;), a Delaware limited liability company, is the sole general partner of Bravo II.  Pacific Investment Management Company LLC (&quot;PIMCO&quot;) is the sole managing member of PIMCO GP and has the power to make voting and investment decisions regarding the Preferred Stock held by B2 FIE.  Each of Bravo II, PIMCO GP and PIMCO disclaim beneficial ownership of the Preferred Stock except to the extent of its pecuniary interest therein.</footnote>
        <footnote id="F2">N/A</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Harin de Silva, Executive Vice President, Pacific Investment Management Company LLC</signatureName>
        <signatureDate>2016-06-21</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Harin de Silva, Authorized Person, B2 FIE V LLC</signatureName>
        <signatureDate>2016-06-21</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Harin de Silva, Authorized Person, PIMCO Bravo Fund II, L.P.</signatureName>
        <signatureDate>2016-06-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
